Diagnosis Procedure

WARNING: This page is about a different car, the 2013 Nissan Armada. However, it is still accessible from the selected car via links, so may be relevant.

CHECK CONNECTOR
1. Turn the ignition switch OFF.
2. Disconnect the battery cable from the negative terminal.
3. Check the following terminals and connectors for damage, bend and loose connection (connector side and harness side).
  - Harness connector B69
  - Harness connector M40
  Is the inspection result normal?
  
  YES: GO TO 2.
  
  NO: Repair the terminal and connector.

CHECK HARNESS CONTINUITY (OPEN CIRCUIT)

Disconnect the following harness connectors.
- Harness connectors B200 and B37
- Harness connectors B69 and M40

Check the continuity between the harness connectors.

Harness connector		Harness connector		Continuity
Connector No.	Terminal No.	Connector No.	Terminal No.	Continuity
B37	15	B69	11J	Existed
B37	14	B69	22J	Existed

Is the inspection result normal?

YES: GO TO 3.

NO: Repair the main line between the harness connectors B37 and B69.

CHECK HARNESS CONTINUITY (OPEN CIRCUIT)

Check the continuity between the harness connector and the data link connector.

Harness connector		Data link connector harness connector		Continuity
Connector No.	Terminal No.	Connector No.	Terminal No.	Continuity
M40	11J	M22	6	Existed
M40	22J	M22	14	Existed

Is the inspection result normal?

YES (Present error): Check the following items again.

Decision of CAN system type.
Not received CONSULT data (SELF-DIAG RESULTS, CAN DIAG SUPPORT MNTR).
Procedure for detecting root cause.

YES (Past error): Error was detected in the main line between the driver seat control unit and the data link connector.

NO: Repair the main line between the harness connector M40 and the data link connector.